Error while running event quality-wagons::on_built_entity (ID 6)
Unknown entity name: artifactual-cargo-wagon-mk4
stack traceback:
[C]: in function 'create_entity'
quality-wagons/control.lua:14: in function <quality-wagons/control.lua:1>

Same problem, different error:

355.110 Error MainLoop.cpp:1468: Exception at tick 25166150: The mod Quality Wagons (1.0.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event quality-wagons::on_robot_built_entity (ID 18)
Unknown entity name: rare-bob-cargo-wagon-3
stack traceback:
[C]: in function 'create_entity'
quality-wagons/control.lua:14: in function <quality-wagons/control.lua:1>
359.124 Info AppManager.cpp:353: Deleting active scenario.
360.712 Quitting: user-quit.
361.506 Info SDLWindow.cpp:384: Leaking D3D GraphicsInterface to prevent AMD graphics driver crash.
361.563 Goodbye

Suspect this is a dead mod as developer not responded to your query after 6 months...